應用單片機和滾珠絲杠副，研制了發動機瞬態工況試驗研究用的油門瞬態控制器。介紹了控制器的總體方案、硬件組成以及軟件開發。控制器具有精確控制油門打開的速度與加速度的功能，具有精度高、人機界面可視化等特點。實用證明該控制器性能滿足實際應用的要求。
關鍵詞：發動機；油門瞬態控制器；單片機；滾珠絲杠；步進電機
Abstract: Applying the microcontroller and the ball screw pair, a transient throttle control system for engine research is developed. The general scheme, hardware composition and software design of the transient throttle control system are introduced. The system has the characteristics of high precision and favorable visual interface. The experiment results and the application show that the system’s angular velocity and angular acceleration of the
throttle’s rotation are in high precision and meet the requirements of the actual application.
Key words: engine; transient throttle control system; microcontroller; ball screw; stepper motor